Electroluminescence device and organic electroluminescence display

Abstract

An organic electroluminescence device and display having high efficiency and improved durability. A layer formed of polysiloxane, fluorinated hydrocarbon, and/or derivatives thereof is interposed between an anode and a hole injection layer/hole transport layer, thus improving the durability of the organic electroluminescence device.

1 . An organic electroluminescence (EL) device, comprising: 
 a substrate;    an anode arranged on the substrate;    an anode protection layer arranged on the anode;    a hole auxiliary layer arranged on the anode protection layer;    an organic light-emitting layer arranged on the hole auxiliary layer; and    a cathode arranged on the organic light-emitting layer,    wherein the hole auxiliary layer comprises a hole injection layer or a hole transport layer (HTL),    wherein the anode protection layer includes one or more compounds selected from the group consisting of a fluorinated polysiloxane, a fluorinated hydrocarbon, and any derivatives thereof.    
     
     
         2 . The organic EL device of  claim 1 , wherein the anode protection layer includes fluorinated polysiloxane bonded by a covalent bond.  
     
     
         3 . The organic EL device of  claim 1 , wherein the anode protection layer includes fluorinated hydrocarbon, which includes polytetrafluoroethylene.  
     
     
         4 . The organic EL device of  claim 1 , wherein the anode protection layer includes fluorinated polysiloxane, which is manufactured by heptadecafluoro-1,1,2,2-tetrahydrodecyl-dimethyl-chloro silane.  
     
     
         5 . The organic EL device of  claim 1 , wherein the anode protection layer comprises multiple layers including fluorinated polysiloxane.  
     
     
         6 . The organic EL device of  claim 1 , wherein the anode protection layer is in a range of 0.1 nm to 50 nm thick.  
     
     
         7 . The organic EL device of  claim 1 , wherein the HTL is formed of polyaniline (PANI) or poly(ethylene dioxy-thiophene)-polystyrene sulfonic acid (PDOT:PSS).  
     
     
         8 . The organic EL device of  claim 7 , wherein the HTL is in a range of 30 nm to 150 nm thick.  
     
     
         9 . The organic EL device of  claim 1 , wherein the anode comprises indium-tin-oxide (ITO).  
     
     
         10 . The organic EL device of  claim 1 , wherein the organic light-emitting layer comprises more than one of poly(phenylenvinylenes) and polyfluorenes.  
     
     
         11 . The organic EL device of  claim 10 , wherein the organic light-emitting layer is in a range of 50 nm to 120 nm thick.  
     
     
         12 . The organic EL device of  claim 1 , wherein the cathode comprises: 
 a first cathode layer formed of calcium; and    a second cathode layer formed of aluminum and arranged on the first cathode layer.    
     
     
         13 . The organic EL device of  claim 12 , wherein the first cathode layer is 10 nm thick and the second cathode layer is 500 nm thick.  
     
     
         14 . The organic EL device of  claim 1 , 
 further comprising a layer interposed between the organic light-emitting layer and the cathode,    wherein the layer includes more than one of alkali fluoride and alkali earth fluoride.    
     
     
         15 . The organic EL device of  claim 14 , wherein the layer forms part of the cathode.  
     
     
         16 . The organic EL device of  claim 15 , wherein the alkali fluoride is lithium fluoride.  
     
     
         17 . The organic EL device of  claim 1 , further comprising a sealing member.  
     
     
         18 . An organic electroluminescence device, comprising: 
 an anode;    an anode protection layer arranged on the anode;    a hole transport layer arranged on the anode protection layer;    an organic light-emitting layer arranged on the hole transport layer; and    a cathode arranged on the organic light-emitting layer,    wherein the anode protection layer includes one or more compounds selected from the group consisting of a fluorinated polysiloxane, a fluorinated hydrocarbon, and any derivatives thereof.    
     
     
         19 . An organic electroluminescence (EL) display, comprising: 
 a substrate;    a display region formed on the substrate; and    a sealing member for sealing the display region,    wherein more than one pixel is formed in the display region, and    wherein each pixel comprises: 
 an anode;  
 an anode protection layer arranged on the anode;  
   a hole auxiliary layer, comprising a hole injection layer or a hole transport layer, arranged on the anode protection layer; 
 an organic light-emitting layer arranged on the hole auxiliary layer; and  
 a cathode arranged on the organic light-emitting layer,  
 wherein the anode protection layer includes one or more compounds selected from the group consisting of a fluorinated polysiloxane, a fluorinated hydrocarbon, and any derivatives thereof.  
   
     
     
         20 . The organic EL display of  claim 19 , wherein the anode protection layer includes fluorinated polysiloxane bonded by a covalent bond.  
     
     
         21 . The organic EL display of  claim 19 , wherein the anode protection layer includes fluorinated hydrocarbon, which includes polytetrafluoroethylene.  
     
     
         22 . The organic EL display of  claim 19 , wherein the anode protection layer includes fluorinated polysiloxane, which is manufactured by heptadecafluoro-1,1,2,2-tetrahydrodecyl-dimethyl-chloro silane.  
     
     
         23 . The organic EL display of  claim 19 , wherein the anode protection layer includes multiple layers including fluorinated polysiloxane.